Air-brush.



PATENTED JULY 21, 1903.

H. SHEPIQER.

AIR BRUSH.

. APPLICATION-FILED JULY 28, 1902.

NO MODEL.

UNITED STATES" Patentedii'uly 21, 1903.

PATENT OFFICE.

WILLIAM H. sHnPLEaoF CHICAGO,1LIIINOIS,ASSIGNOR or FIVE-EIGHTHS TO ALBERT AHRENS AND OHARLES'ORCHARDSON;'OF cnIoAeo, ILLINOIS.

AlR-BZRUSH.

SPECIFICATION forming part of Letters Patent-No." 734,473, dated July 21, 1903.

Application filed July 28,1902. Serial No. 117,278. (No model.) I

To all whom it may concern:

Be it known that 1, WILLIAM H. SHEPLER, acitizen of the United States 0fAmerica,'residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in'Air-Brushes, of which the following is a specification. Y

My invention relates to certain new and useful improvements in air-brushes; and its object is to provide a device of this class which shall be more convenient to hold and simpler and more effective in operation than many devices heretofore inuse.

To these and other minor ends my invention consists in certain novel features of construction fully shown in the accompanying drawings and described in the specification.

In the aforesaid drawings, Figure 1 is a central longitudinal section of my improved airbrush. Fig. 2 is a rear view of the same looking in the direction .of the arrow 2 in Fig. 1. Fig. 3 is a section in the line 3 3 of Fig. 1 looking upward. Fig. t is a plan of the needle of the pigment-valve. Fig. 5 is a section in the line 5 5 of Fig. 1 looking in the direction of the arrow, and Fig. 6 is a section in the line 6 6 of Fig.1 also looking in the direction of the arrow. 7

Referring to the drawings, A is the main tube of the air-brush, closed at its rear end by a block B. The tube A is formed, preferably, by coring out a casting and drilling an interior hole. The tube terminates at the front in a solid block'A, formed integrally therewith, and over this block is screwed a conical tip 0, terminating in a front tubular portion 0 of much less diame-.

ter than the tube A. Within the cone-shaped tip 0 and secured to a suitable boss at in the block A is a nozzle D, centrally perforated at d, as shown in Fig. 1. Extending downward from the block A is a pigment-tube E, having a central perforation e, which communicates with the central perforation of the nozzle D. A needle F extends through the central perforation of the nozzle D back ward through a central perforation a in the block A and thence through a similar perforation in the block B at the rear of the tube A. The needle is spring-pressed forward by a spring f, so that it normally keeps theend of the nozzle D closed.

To the lower rear portion of the tube A is connected a hollow handle G, preferably made in the shapeof a pistol-grip, said handle having at its ,lower end a tip g, adapted to afford a ready neans of attachment for a rubber tube carrying compressed air. From the top of this hollow grip runs a tube-H to a perforationI inthe block A. This perfooo ration I enters laterally a second perforation J, extending forward through said block to the space between the nozzle D and the conical tip 0. It will be noted that air entering the grip G through the tip 9 will pass through the tube H and the perforations I J into the annular space between the conical tip and the nozzle and out through the reduced end of said tip 0. The end of the perforation I is normally closed by a valve K, spring-pressed forward by a spring is. A spring-pressed washer or gasket lo, encircling the valve-stem Kand pressing against the block A, effectually prevents any leakage of the air at this point. 1

On the top of the tube A are a pair of brackets L L, having pivoted between them a trigger M. The upper portion of this trigger is flattened, as shown, and extends through slots in the needle F and the valve K. It will be seen that when the trigger M is drawn backward toward the pistol-grip G it will first open the air-valve Kiand then draw back the needle F, thereby opening the nozzle D. p

A pigment-bottle N, preferably of glass or some transparent material, is secured about the pigment-tube E by a spring-clip O, which surrounds the tube A. Saidv spring-clip is provided with ears 0 0, which engage an outwardly-turned flange or on the neck of the 0 pigment-bottle. This, it will be seen, provides for the ready removal of the pigmentbottles from the air-brush.

The operation of the entire device will be readilyapparent. When the trigger isdrawn 5 back, air is allowed to pass from the grip through the perforations I and J into the space between the nozzle and the conical tip 0 and passes in a thin sheet past the end of said nozzle. As the trigger isdrawn farther time.

back the needle F is withdrawn from the front of the nozzle D, opening the passage from the end of said nozzle to the pigmentbottle M. An injector action is at once set up and the pigment is sucked up the pigmenttube E and through the perforations a d to the end of the nozzle, where it is sprayed out in the usual way.

The advantages of my construction over those heretofore used will be quite apparent. The use of a hollow chamber on the air-brush itself gives a reservoir of compressed air close at hand and causes a more even flow from the air-nozzle than has hitherto been had. The use of the pistol-grip makes the tool much more convenient and permits the artist to use the same without assuming the usual awkward position which is necessary with HlI'bIHSIlQS of the old pencil-shaped type. This greatly lessens the work of using the device and is of course very desirable.

The fact that I make my pistol-grip the airreservoir produces great compactness and neatuess of appearance and combines the two advantages heretofore set forth, as they probably could not otherwise be combined on account of lack ofspace. Afurther advantage lies in the fact that I use a pigment-bottle for holding the ink instead of dropping a few drops of ink at a time into the tool, as has heretofore been the practice. WVork can, of course, go on uninterrupted without reference to the quantity of ink in the tool. The bottle of course is made transparent in order that the operator may know at a glance how much ink he has on hand at any one The bottles are made interchangeable, and a series of them are provided to hold pigments of difierent colors, and the use of a spring-clip permits of theirreadyinterchange.

I realize that considerable changes can be made in the details of construction, and I do not, therefore, desire to limit myself to the exact construction shown.

I claim as new and desire to secure by Letters Patent- 1. In a device of the class described, the combination with a pigment-valve, and receptacle for a supply of pigment, means of connection between said receptacle and said valve, means for opening said valve, a nozzle for compressed air contiguous to said pigment-valve and means for opening and closing said nozzle, of a hollow chamber connected to said nozzle and having a fixed relation thereto and adapted to hold a supply of compressed air.

2. In a device of the class described, the combination with a supporting-tube, a pigment-nozzle, means for opening and closing the same, a receptacle for a supply of pigment connected to said nozzle, an air-tube adapted to discharge a jet of air close to said pigmentmozzle to draw pigment'from said receptacle through said nozzle and spray it out, of a hollow pistol-grip adapted to serve as a handle for the device and at the same time to serve as a reservoir for compressed air.

3. In a device of the class described, the combination with a pigment and an air nozzle, means for supplying compressed air to said air-nozzle, and controlling the flow thereof, a tube extending from said pigment-nozzle, and means for opening and closing said nozzle, of a pigment-bottle secured to said tube by a spring-clip, and adapted to be readily removed therefrom.

4. In a device of the class described, the combination witha pigment and an air nozzle, means for supplying compressed air to said air-nozzle, and controlling the flow thereof, a tube extending from said pigment-nozzle, and means for opening and closing said nozzle, of a transparent pigment'bottle secured to said tube by a spring-clip, and adapted to be readily removed therefrom.

5. In a device of the class described, the combination with an air-nozzle and a pigment-nozzle, and means for supplying air and pigment to said nozzles respectively, of a single trigger extending through slots in said valve-stems and adapted, when moved continuously in one direction, to open first the valve-stem controlling said air-nozzle and 9 subsequently the valve-stem controlling said pigment-nozzle.

WILLIAM H. SHEPLER.

Witnesses:

CHAS. O. SHERVEY, RUssELL Wtnns. 

